How to install Speedometer on 2004 Seadoo GTI-RFI?

[s02-slm]

I recently purchased a 2004 GTI-RFI, which does not come with a speedometer, however there's a empty spot for one that is next to the fuel guage.

My question: does anyone know if it's even possible to "add" a spedometer to this particular model? I wasn't sure if any additional steps in adding something like this..

Thanks in advance!
Shannon